Home / 719,865.15-993,408.08-397,597.34

Finding the Fourth Proportional to 719,865.15, 993,408.08 and 397,597.34

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Solution

The fourth proportional to 719,865.15, 993,408.08 and 397,597.34 is: 548,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,865.15 : 993,408.08 = 397,597.34 : x
  2. Step 2: Convert to fraction form
    719,865.15/993,408.08 = 397,597.34/x
  3. Step 3: Cross multiply
    719,865.15x = 993,408.08 × 397,597.34
  4. Step 4: Simplify right side
    719,865.15x = 394,976,403,187.48
  5. Step 5: Solve for x
    x = 394,976,403,187.48/719,865.15
  6. Step 6: Final answer
    x = 548,681.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.